Search for new resonances in Wγ and Zγ final states in pp collisions at √s = 8 TeV with the ATLAS detector

Cerri, A, Chavez Barajas, C, De Sanctis, U, De Santo, A, Grout, Z J, Potter, C T, Salvatore, F, Santoyo Castillo, I, Shehu, Y, Sutton, M and Vivarelli, I (2014) Search for new resonances in Wγ and Zγ final states in pp collisions at √s = 8 TeV with the ATLAS detector. Physics Letters B, 738. ISSN 0370-2693

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Abstract

This Letter presents a search for new resonances decaying to final states with a vector boson produced in association with a high transverse momentum photon, Vγ , with V=W(→ℓν)V=W(→ℓν) or Z(→ℓ+ℓ−)Z(→ℓ+ℓ−), where ℓ=eℓ=e or μ. The measurements use 20.3 fb−1 of proton–proton collision data at a center-of-mass energy of View the MathML sources=8 TeV recorded with the ATLAS detector. No deviations from the Standard Model expectations are found, and production cross section limits are set at 95% confidence level. Masses of the hypothetical aTaT and ωTωT states of a benchmark Low Scale Technicolor model are excluded in the ranges [275,960] GeV[275,960] GeV and [200,700]∪[750,890] GeV[200,700]∪[750,890] GeV, respectively. Limits at 95% confidence level on the production cross section of a singlet scalar resonance decaying to Zγ final states have also been obtained for masses below 1180 GeV.

Item Type: Article
Additional Information: Part of the ATLAS Collaboration
Schools and Departments: School of Mathematical and Physical Sciences > Physics and Astronomy
Subjects: Q Science > QC Physics
Q Science > QC Physics > QC0170 Atomic physics. Constitution and properties of matter Including molecular physics, relativity, quantum theory, and solid state physics
Depositing User: Samuel Appleton
Date Deposited: 17 Jul 2015 16:02
Last Modified: 07 Mar 2017 11:43
URI: http://sro.sussex.ac.uk/id/eprint/55416

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Project NameSussex Project NumberFunderFunder Ref
Consolidated GrantG0927STFC-SCIENCE AND TECHNOLOGY FACILITIES COUNCILST/K001329/1